The controversial Mrs. Obama will appear for the whole hour, sitting in with the panel of Whoopi Goldberg, Barbara Walters and the others for the show’s trademark “Hot Topics” segment.

She may even interview celebrity guests.

Michelle Obama has not hidden her dislike for her husband’s front-running rival, Sen. Hillary Clinton, a frequent and favored guest on the morning show. Mrs. Obama has predicted that black voters, who currently favor Hillary over Obama in the polls, will turn to her husband as the primaries approach.